From: utzoo!watmath!bstempleton Newsgroups: net.singles Title: Re: Birth control effectiveness Article-I.D.: watmath.4916 Posted: Mon Apr 11 13:07:36 1983 Received: Tue Apr 12 00:18:00 1983 References: menlo70.150 What is the effectiveness for no birth control? Ie. if sponge means 85% don't get pregnant, then how many don't (or do) when they just lead a normal sex life without the contraceptive? I expect it would be hard to get figures on this, for the only subjects you would get would be people who are married and want to have a child, and you would only be able to record how long it took. I assume the figure is pretty low. Reply by mail, of course. Brad